ADP1706/ADP1707/ADP1708Data SheetPIN CONFIGURATIONS AND FUNCTION DESCRIPTIONSEN 18 SSEN 18 SSGNDADP170627 SENSEGND 27 SENSEADP1706IN 3TOP VIEW6 OUTTOP VIEW(Not to Scale)IN 36 OUT(Not to Scale)IN 45 OUTIN 45 OUTNOTESNOTES1. EXPOSED PAD. THE EXPOSED PAD ENHANCES THERMAL PERFORMANCE1. EXPOSED PAD. THE EXPOSED PAD ENHANCES THERMAL PERFORMANCEAND IS ELECTRICALLY CONNECTED TO GND INSIDE THE PACKAGE. IT ISAND IS ELECTRICALLY CONNECTED TO GND INSIDE THE PACKAGE. IT IS -004 RECOMMENDED TO CONNECT THE EXPOSED PAD TO THE GROUND PLANE 007 40 RECOMMENDED TO CONNECT THE EXPOSED PAD TO THE GROUND PLANEON THE BOARD. 40- 066 ON THE BOARD. 066 Figure 4. 8-Lead SOIC, ADP1706 Figure 5. 8-Lead LFCSP, ADP1706 Table 4. ADP1706 Pin Function DescriptionsPin No.SOIC LFCSP Mnemonic Description 1 1 EN Enable Input. Drive EN high to turn on the regulator; drive it low to turn off the regulator. For automatic startup, connect EN to IN. 2 2 GND Ground. 3, 4 3, 4 IN Regulator Input Supply. Bypass IN to GND with a 4.7 μF or greater capacitor. 5, 6 5, 6 OUT Regulated Output Voltage. Bypass OUT to GND with a 4.7 μF or greater capacitor. 7 7 SENSE Sense. Measures the actual output voltage at the load and feeds it to the error amplifier. Connect SENSE as close as possible to the load to minimize the effect of IR drop between the regulator output and the load. 8 8 SS Soft Start. A capacitor connected to this pin determines the soft start time. 0 0 EP Exposed Pad. The exposed pad enhances thermal performance and is electrically connected to GND inside the package. It is recommended to connect the exposed pad to the ground plane on the board. Rev. A | Page 6 of 20 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUITS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION SOFT START FUNCTION (ADP1706) ADJUSTABLE OUTPUT VOLTAGE (ADP1708) TRACK MODE (ADP1707) ENABLE FEATURE APPLICATIONS INFORMATION CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties VOLTAGE TRACKING APPLICATIONS CURRENT LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE NOTES